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Injection Practices > Commercial Assets

Underground Car Park Injection

Underground car parks in urban Egypt are prone to water ingress through retaining walls and expansion joints. Constant vehicle vibrations and thermal expansion create dynamic movements that traditional rigid waterproofing cannot handle. EG Core specializes in elastomeric injection systems designed to keep multi-story subterranean parking facilities bone-dry.

High Pressure Injection in Parking Deck Concrete

Dynamic Movement & Vibration Resistance

For car park decks and structural beams, we utilize Elastic Polyurethane Resins. Unlike brittle epoxy, these resins remain flexible after curing, allowing the concrete to move slightly under the weight of passing traffic without cracking the seal. This prevents water and de-icing salts from reaching the rebar, stopping structural corrosion before it begins.

Parking Infrastructure Specs

  • Key Problem: Water seepage through construction joints and shrinkage cracks.
  • Injection Materials: Low-viscosity elastic PU and hydrophilic acrylics.
  • Benefit: Seals cracks against negative-side hydrostatic pressure.
  • Execution: Clean, non-disruptive application allowing partial facility use.

Expansion Joint & Floor Sealing

Water entering through expansion joints can cause long-term damage to electrical systems and vehicle finishes. Our Acrylic Gel injection method creates a deep volumetric seal within the joint, ensuring a permanent barrier against groundwater. This technique is particularly effective for basements and underground structures where external excavation is impossible.

  • Protection of the concrete against the ingress of harmful substances through cracks and cavities
  • Reinforcement of concrete components to withstand tensile and compressive loading
  • Corrosion protection of reinforcing steel and similar inserts
  • Waterproofing of external components, particularly in areas in contact with the subsoil
  • Sealing of construction and expansion joints
  • Improvement of components prior to surface coating and/or installation of adhesive-bonded CFRP strips etc

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